had my clx for a few months and flush it regularly to get rid of the grit build up inbetween the sections, today its was getting quite gritty again and some sections getting stuck so when i got home i pulled all the sections apart stuck it in the bath and flushed each section sepeately, with the plug in. Wow i couldnt beleive how much rubbish came out and i only flushed it last week. so i put it back together and wow, its so much smother now, its like now.
dont know if anyone else does this or not, but i would highly recommecd it.